Control circuit of emergency lamp and emergency lamp

Abstract

The utility model provides an emergency lamp control circuit and an emergency lamp, and belongs to the technical field of emergency equipment, the emergency lamp control circuit comprises a communication circuit used for outputting corresponding emergency data signals; the first terminal is electrically connected with the communication circuit, and the first terminal is used for enabling the communication circuit to be connected into an external data reader and outputting an emergency data signal to the external data reader. According to the technical scheme of the utility model, the communication circuit is adopted to output corresponding emergency data signals, and the first terminal is adopted to be connected with the external data reader, so that the communication circuit is accessed to the external data reader and outputs the emergency data signals. Therefore, maintenance personnel can conveniently and quickly read the lamp information through the handheld data reader to judge the emergency use state and the fault alarm condition of the lamp.

Description

Technical Field

[0001] The present application relates to the technical field of emergency equipment, and in particular to a control circuit and an emergency light. Background Art

[0002] Fire emergency lighting, as a vital component in the field of fire evacuation applications, has an increasingly wide range of applications and its importance cannot be ignored. These lamps play a vital role in emergency situations such as fires, providing lighting and guidance for personnel evacuation. Fire emergency lighting usually has two working modes: normal mode and emergency mode. In normal mode, the lamp is powered by the mains to provide daily lighting. When the mains power is interrupted or an emergency such as a fire occurs, the lamp will immediately switch to emergency mode, provide lighting through the built-in backup power supply, and send out a fault alarm signal so that personnel can be notified in time for processing.

[0003] However, in actual engineering sites, inspection and maintenance personnel often face a problem: in actual engineering sites, inspection and maintenance personnel are often unable to directly read the lamp information. This may be due to complex on-site environments, insufficient light, or maintenance personnel not having professional inspection tools. This difficulty in reading information not only affects the work efficiency of maintenance personnel, but may also cause the lamps to fail to work properly in emergency situations, thereby increasing the risk of emergency situations such as fires. Utility Model Content

[0004] The main purpose of the utility model is to provide a control circuit for emergency lights, aiming to solve the technical problem that it is difficult to read the information of fire emergency lights, which affects the work efficiency of maintenance personnel and may also cause the lights to fail to work properly in emergency situations, thereby increasing the risk of emergency situations such as fires.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a control circuit of an emergency light, comprising:

[0006] A communication circuit, the communication circuit is used to obtain a status signal of the lamp and output a corresponding emergency data signal;

[0007] The first terminal is electrically connected to the communication circuit, and the first terminal is used for connecting the communication circuit to an external data reader and outputting an emergency data signal to the external data reader.

[0008] In one embodiment, the communication circuit comprises:

[0009] A main control chip, a communication end of the main control chip is connected to the communication end of the first terminal, and the main control chip is used to output a corresponding emergency data signal;

[0010] A regulating circuit, wherein the output end of the regulating circuit is connected to the first signal end of the main control chip, and the regulating circuit is used to transmit a regulating signal to the main control chip so that the main control chip adjusts the output emergency data signal.

[0011] In one embodiment, the regulating circuit comprises:

[0012] A touch switch, both ends of which are connected to the adjustment signal end of the main control chip, and the touch switch is used to input the adjustment signal.

[0013] In one embodiment, a power supply circuit is further included, and the power supply circuit includes:

[0014] A power supply circuit, the power supply circuit is used to access the mains power and rectify the mains power into a direct current source;

[0015] A step-down circuit, wherein a power input terminal of the step-down circuit is connected to a power output terminal of the power supply circuit, and the step-down circuit is used to reduce the voltage of the rectified mains power;

[0016] A charging circuit, wherein the power input end of the charging circuit is connected to the power output end of the step-down circuit, the power output end of the charging circuit is connected to the power input end of the communication circuit, and the charging circuit is used to charge the battery.

[0017] In one embodiment, the power supply circuit includes:

[0018] A rectifier circuit, the rectifier circuit is used to access the mains power and rectify the mains power into a direct current source;

[0019] A mains power detection circuit, wherein the power input end of the mains power detection circuit is connected to the DC output end of the rectifier circuit, and the signal output end of the mains power detection circuit is connected to the signal input end of the communication circuit.

[0020] In one embodiment, the rectifier circuit comprises:

[0021] a first fuse, wherein a first end of the first fuse is connected to the live wire;

[0022] A rectifier bridge, wherein a first AC end of the rectifier bridge is connected to the second end of the first fuse, a second AC end of the rectifier bridge is connected to a neutral line, a first DC end of the rectifier bridge is connected to a first input end of the mains detection circuit, a second DC end of the rectifier bridge is connected to a second input end of the mains detection circuit, and at least one capacitor is connected between the first DC end and the second DC end of the rectifier bridge;

[0023] The mains power detection circuit comprises a first resistor and a second resistor;

[0024] The first end of the first resistor is connected to the first DC end of the rectifier bridge, the second end of the second resistor is grounded, a third resistor is connected between the second end of the first resistor and the first end of the second resistor, and a common node of the second resistor and the third resistor is connected to the signal input end of the communication circuit.

[0025] In one embodiment, the step-down circuit includes:

[0026] A step-down chip, wherein a first end of the step-down chip is connected to a power output end of the power supply circuit, and a first diode is connected between a second end of the step-down chip and the ground;

[0027] a first inductor, wherein a first end of the first inductor is connected to a second end of the buck chip, at least one capacitor is connected between the first end of the first inductor and a third end of the buck chip, a second end of the first inductor is a power output end of the buck circuit, and at least one capacitor is connected between the second end of the first inductor and ground;

[0028] A second diode, wherein a cathode of the second diode is connected to a third end of the buck chip, and a third diode is connected between an anode of the second diode and a second end of the first inductor.

[0029] In one embodiment, the charging circuit comprises:

[0030] a first switch element, wherein a fourth resistor is connected between a first conduction end of the first switch element and an output end of the step-down circuit;

[0031] a second switch element, a fifth resistor connected between a first conduction end of the second switch element and a control end of the first switch element, a second conduction end of the second switch element is grounded, and a sixth resistor is connected between the control end of the second switch element and a charging control end of the communication circuit;

[0032] a fourth diode, wherein an anode of the fourth diode is connected to the second conducting end of the first switching element;

[0033] A battery, a second fuse is connected between the positive electrode of the battery and the negative electrode of the fourth diode, and the negative electrode of the battery is grounded.

[0034] In one embodiment, a discharge circuit is further included, and the discharge circuit includes:

[0035] A third switch element, a seventh resistor is directly connected between the control end of the third switch element and the driving end of the communication circuit, and at least one LED lamp is connected between the second conduction end of the third switch element and the ground.

[0036] In addition, to achieve the above-mentioned purpose, the utility model also proposes an emergency light, including the control circuit of the emergency light as described above.

[0037] The embodiment of the utility model adopts a communication circuit to output a corresponding emergency data signal, and adopts a first terminal to be connected to an external data reader, so that the communication circuit can access the external data reader and output the emergency data signal, thereby facilitating maintenance personnel to quickly read the lamp information through a handheld data reader to determine the emergency use status and fault alarm status of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 This is a structural block diagram of an embodiment of a control circuit for an emergency light of the present utility model.

[0040] Figure 2 This is a structural block diagram of another embodiment of the control circuit of the emergency light of the utility model.

[0041] Figure 3 for Figure 2 Schematic diagram of the regulation circuit in.

[0042] Figure 4 This is a structural block diagram of another embodiment of the control circuit of the emergency light of the utility model.

[0043] Figure 5 for Figure 4 The structural block diagram of the detailed circuit in.

[0044] Figure 6 This is a structural block diagram of another embodiment of the control circuit of the emergency light of the utility model.

[0045] Figure 7 for Figure 6 Schematic diagram of the rectifier circuit and AC power detection circuit.

[0046] Figure 8 for Figure 5 Schematic diagram of the step-down circuit in .

[0047] Fig. 9 for Figure 5 Schematic diagram of the charging circuit in.

[0048] Fig.10This is a structural block diagram of another embodiment of the control circuit of the emergency light of the utility model.

[0049] Description of Figure Numbers:

[0050] Label name Label name 100 Communication circuit 310 Power supply circuit 110 Regulation circuit 311 Rectification circuit 120 Main control chip 312 Mains detection circuit 200 First terminal 320 Buck circuit 300 Power Circuit 330 Charging Circuit

[0051] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0055] In one embodiment of the present invention, Figure 1 As shown, a control circuit of an emergency light includes a communication circuit 100 and a first terminal 200, wherein:

[0056] The communication circuit 100 is used to obtain the status signal of the lamp and output the corresponding emergency data signal; the first terminal 200 is electrically connected to the communication circuit 100, and the first terminal 200 is used for the communication circuit 100 to connect to an external data reader and output the emergency data signal to the external data reader; the first terminal 200 can be a type-c terminal.

[0057] In this embodiment, the communication circuit 100 can monitor the working status of the emergency light in real time, including the power of the battery BT1, the working mode of the light, fault alarm and other information. Once an abnormal situation occurs, the communication circuit 100 will immediately generate a corresponding emergency data signal. These signals contain detailed information about the light, so that maintenance personnel can quickly understand the status of the light through an external handheld data reader, so as to make a timely response.

[0058] In this embodiment, the design of the first terminal 200 enables the communication circuit 100 to be connected to an external data reader. The external data reader can be a handheld device, such as a smart phone or a dedicated data collector. When maintenance personnel need to inspect or repair the lamp, they only need to connect the external data reader to the first terminal 200 to read the emergency data signal of the lamp. This method greatly simplifies the process of obtaining lamp information and improves work efficiency.

[0059] In addition, in order to enhance the stability and reliability of the communication circuit 100, the communication circuit 100 may further include a filtering circuit and a level conversion circuit. The filtering circuit can filter out noise and interference in the communication signal to ensure the clarity and accuracy of the signal. The level conversion circuit can match the output level of the communication circuit 100 with the input level of the external data reader to avoid data transmission errors caused by level mismatch. This circuit structure not only simplifies the maintenance process of the lamp and improves work efficiency, but also enhances the stability and reliability of the communication circuit 100, providing a guarantee for the reliable operation of the emergency lamp.

[0060] It is understandable that the communication circuit 100 may include a controller, and the controller may be implemented by a MCU (Microcontroller Unit), a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), a SOC (System On Chip), etc. It may also be implemented by other simple logic gate chips. For example, an STM32 microcontroller or a TMS microcontroller may be used to obtain the status signal of the lamp through an existing algorithm method, and output a corresponding emergency data signal according to the status signal, so that an external data reader can read the data.

[0061] It can be understood that this embodiment mainly provides a circuit that can realize the convenient output of the data of the emergency lighting after conversion, and specifically read it through an external data reader, wherein the information processing process of the control circuit involved can be performed based on the existing data processing logic.

[0062] The technical solution of the utility model adopts the communication circuit 100 to output the corresponding emergency data signal, and adopts the first terminal 200 to connect with the external data reader, so that the communication circuit 100 can be connected to the external data reader and output the emergency data signal, thereby facilitating the maintenance personnel to quickly read the lamp information through the handheld data reader to determine the emergency use status and fault alarm status of the lamp.

[0063] Combined with reference Figure 2 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 1 In the embodiment shown, the communication circuit 100 includes a main control chip 120 and a regulating circuit 110, wherein:

[0064] The communication end of the main control chip 120 is connected to the communication end of the first terminal 200, and the main control chip 120 is used to output the corresponding emergency data signal; the output end of the adjustment circuit 110 is connected to the first signal end of the main control chip 120, and the adjustment circuit 110 is used to transmit an adjustment signal to the main control chip 120 so that the main control chip 120 adjusts the output emergency data signal.

[0065] In this embodiment, the main control chip 120 is the core component of the communication circuit 100, which is responsible for generating and outputting emergency data signals. These signals contain detailed status information of the lamp, such as power, working mode, fault alarm, etc. The main control chip 120 can transmit data with an external data reader through different communication protocols to meet different application requirements.

[0066] In this embodiment, the adjustment circuit 110 is used to transmit an adjustment signal to the main control chip 120 to adjust the output emergency data signal. The adjustment circuit 110 can be a potentiometer, a switch or other adjustable electronic device. Through the adjustment circuit 110, the user can manually adjust the output parameters of the emergency data signal, such as the frequency, amplitude or format of the signal. This design provides users with more flexibility and can optimize the data transmission effect according to actual needs.

[0067] In addition, the regulating circuit 110 can also interact with the main control chip 120 to achieve a more intelligent control function. For example, when the lamp is in a low-power state, the regulating circuit 110 can automatically adjust the output frequency or amplitude of the emergency data signal to ensure that the signal can be accurately received by the external data reader. This automatic adjustment function helps to improve the reliability and stability of the communication circuit 100.

[0068] It should be noted that, in the present invention, the design of the regulating circuit 110 should ensure that it does not interfere with or affect the normal operation of the main control chip 120. At the same time, the output parameters of the regulating circuit 110 should also be within a reasonable range to avoid unnecessary burden or damage to the external data reader.

[0069] It should be noted that the main control chip 120 can be implemented by a controller such as MCU (Microcontroller Unit), DSP (Digital Signal Process), FPGA (Field Programmable Gate Array), SOC (System On Chip), etc. It can also be implemented by other simple logic gate chips. For example, an STM32 microcontroller or a TMS microcontroller is used to obtain the status signal of the lamp through an existing algorithm method, and output a corresponding emergency data signal according to the status signal, so that an external data reader can read the data.

[0070] Combined with reference Figure 3 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 2 In the embodiment shown, the regulating circuit 110 includes a touch switch TEST1, wherein:

[0071] Two ends of the touch switch TEST1 are connected to the adjustment signal end of the main control chip 120 , and the touch switch TEST1 is used to input the adjustment signal.

[0072] In this embodiment, the touch switch TEST1 is used as the core component of the adjustment circuit 110. By the user pressing or releasing the switch, a corresponding adjustment signal is generated and transmitted to the main control chip 120. This design is simple and intuitive. The user only needs to press the switch lightly to adjust the emergency data signal without complicated operations or professional skills. Specifically, when the user needs to adjust the output parameters of the emergency data signal, just press the touch switch TEST1, and the main control chip 120 will receive the corresponding adjustment signal. Depending on the adjustment signal, the main control chip 120 can adjust the frequency, amplitude or format of the output emergency data signal and other parameters to meet the needs of the user.

[0073] It should be noted that in the present invention, the design of the touch switch TEST1 should ensure that it has a good touch and stability to avoid damage or failure of the switch due to user misoperation or frequent operation. At the same time, the connection between the touch switch TEST1 and the main control chip 120 should also remain stable and reliable to ensure that the adjustment signal can be accurately transmitted to the main control chip 120.

[0074] In addition, the regulating circuit 110 further includes a main power indicator light, a charging indicator light and a fault indicator light. The main power indicator light G, the charging indicator light R and the fault indicator light Y can be represented by green, red and yellow respectively.

[0075] In this embodiment, the main power indicator light G, the charging indicator light R and the fault indicator light Y are used to intuitively display the current status of the lamp. When the emergency light is in normal working condition, the main power indicator light G will light up, indicating that the lamp is using the main power supply for power supply. When the lamp is in charging state, the charging indicator light R will light up, indicating that the lamp is receiving charging current and storing power. When the lamp fails or has an abnormal condition, the fault indicator light Y will light up to remind the user to repair or check in time.

[0076] This design allows users to quickly understand the working status of the lamp by observing the color and status of the indicator light, without the need for complex operations or professional skills. At the same time, the use of indicator lights also improves the ease of use and user-friendliness of the lamp, allowing users to use and maintain the lamp more conveniently.

[0077] Combined with reference Figure 4 and Figure 5 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 1-3 As shown in any embodiment, the control circuit of the emergency light further includes a power supply circuit 300, and the power supply circuit 300 includes a power supply circuit 310, a step-down circuit 320 and a charging circuit 330, wherein:

[0078] The power supply circuit 310 is used to access the AC power supply and rectify the AC power supply into a DC source; the power input end of the step-down circuit 320 is connected to the power output end of the power supply circuit 310, and the step-down circuit 320 is used to reduce the voltage of the rectified AC power supply; the power input end of the charging circuit 330 is connected to the power output end of the step-down circuit 320, and the power output end of the charging circuit 330 is connected to the power input end of the communication circuit 100, and the charging circuit 330 is used to charge the battery BT1.

[0079] In this embodiment, the power supply circuit 300 is an important part of the emergency light control circuit, and is responsible for providing a stable and reliable power supply to the entire circuit. Specifically, the power supply circuit 300 includes three parts: a power supply circuit 310 , a step-down circuit 320 , and a charging circuit 330 .

[0080] The power supply circuit 310 is responsible for connecting to the mains and rectifying the mains into a DC source. The mains is usually AC, which needs to be converted into DC by the rectifier circuit 311 to meet the working requirements of the subsequent circuits. The rectifier circuit 311 can be implemented by a common bridge rectifier or a full-wave rectifier to convert AC into pulsating DC.

[0081] The step-down circuit 320 is used to reduce the voltage of the rectified mains. Since the voltage of the mains is usually high, directly supplying power to the subsequent circuits may cause damage or instability. Therefore, it is necessary to reduce the voltage to a suitable level through the step-down circuit 320. The step-down circuit 320 can be implemented by a linear regulator, a switching regulator, etc., and the specific selection should be made according to actual needs and circuit characteristics.

[0082] The charging circuit 330 is responsible for charging the battery BT1. During the use of the emergency light, the battery BT1 plays a key role as a backup power source. When the mains power is interrupted, the battery BT1 can provide power to the lamp to ensure the normal operation of the lamp. The charging circuit 330 can adopt constant current charging, constant voltage charging and other methods. The specific charging strategy should be selected and adjusted according to the type and characteristics of the battery BT1.

[0083] Combined with reference Figure 6 As shown, further, the utility model also provides an emergency light control circuit according to another embodiment. Figure 5 In the embodiment shown, the power supply circuit 310 includes a rectifier circuit 311 and a mains power detection circuit 312, wherein:

[0084] The rectifier circuit 311 is used to access the AC power and rectify the AC power into a DC source; the power input end of the AC power detection circuit 312 is connected to the DC output end of the rectifier circuit 311, and the signal output end of the AC power detection circuit 312 is connected to the signal input end of the communication circuit 100.

[0085] In this embodiment, the power supply circuit 310 is further divided into two parts: a rectifier circuit 311 and a mains detection circuit 312. The rectifier circuit 311 is responsible for rectifying the connected mains into a DC source for use by subsequent circuits. The mains detection circuit 312 is responsible for detecting the state of the mains and transmitting the detection result to the communication circuit 100. This design method enables the control circuit to understand the working condition of the mains in real time, so as to make corresponding adjustments or countermeasures.

[0086] In addition, the AC power detection circuit 312 can detect the parameters such as the voltage, current or power of the AC power by means of voltage detection, current detection or power detection. When the AC power is abnormal or fails, the AC power detection circuit 312 will send a corresponding signal to the communication circuit 100, and the communication circuit 100 will control the lamp to perform corresponding operations or adjustments according to the preset algorithm or logic. For example, when the AC power is interrupted, the communication circuit 100 can receive the interrupt signal sent by the AC power detection circuit 312, and then control the lamp to switch to the battery BT1 power supply mode to ensure that the lamp can continue to work normally. This control circuit has the advantages of simple structure, high stability, and easy maintenance. It is suitable for various emergency lamp usage scenarios and provides strong technical support for protecting people's lives and property safety.

[0087] Combined with reference Figure 7 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 6 In the embodiment shown, the rectifier circuit 311 includes a first fuse F1 and a rectifier bridge D1, wherein:

[0088] The first end of the first fuse F1 is connected to the live wire; the first AC end of the rectifier bridge D1 is connected to the second end of the first fuse F1, the second AC end of the rectifier bridge D1 is connected to the neutral line, the first DC end of the rectifier bridge D1 is connected to the first input end of the AC power detection circuit 312, the second DC end of the rectifier bridge D1 is connected to the second input end of the AC power detection circuit 312, and at least one capacitor is connected between the first DC end and the second DC end of the rectifier bridge D1.

[0089] In this embodiment, the specific implementation of the rectifier circuit 311 is further described in detail. The rectifier circuit 311 mainly includes two components: a first fuse F1 and a rectifier bridge D1. The first fuse F1 is arranged between the live wire and the rectifier bridge D1 as a circuit protection device. When the current exceeds its rated value, the fuse will automatically disconnect the circuit, thereby protecting the subsequent circuit from damage. This design method can effectively improve the safety and reliability of the circuit.

[0090] The rectifier bridge D1 is responsible for converting AC power into DC power. Specifically, the rectifier bridge D1 has two AC terminals and two DC terminals. Among them, the first AC terminal is connected to the second terminal of the first fuse F1, and the second AC terminal is connected to the neutral line. When the mains power is connected to the circuit, the AC power enters the rectifier bridge D1 through the first fuse F1, and is converted into pulsating DC power through the rectification effect of the rectifier bridge D1. The first DC terminal and the second DC terminal of the rectifier bridge D1 respectively output rectified DC power for use in subsequent circuits. At the same time, at least one capacitor is connected between the first DC terminal and the second DC terminal to filter and smooth the output of DC power and improve the quality of power supply.

[0091] The mains power detection circuit 312 includes a first resistor R1 and a second resistor R2, wherein;

[0092] The first end of the first resistor R1 is connected to the first DC end of the rectifier bridge D1, the second end of the second resistor R2 is grounded, a third resistor R3 is connected between the second end of the first resistor R1 and the first end of the second resistor R2, and a common node of the second resistor R2 and the third resistor R3 is connected to the signal input end of the communication circuit 100.

[0093] In this embodiment, the mains detection circuit 312 detects the state of the mains by accessing the direct current output by the rectifier bridge D1. Specifically, the mains detection circuit 312 can detect the voltage, current and other parameters of the direct current to determine whether the mains is working properly. When the mains is abnormal or fails, the mains detection circuit 312 will send a corresponding signal to the communication circuit 100, and the communication circuit 100 will control the lamp to perform corresponding operations or adjustments according to the preset algorithm or logic. This design method enables the control circuit to understand the working status of the mains in real time, so as to make corresponding countermeasures to ensure the stability and reliability of the lamp.

[0094] In this embodiment, the mains detection circuit 312 is mainly composed of a first resistor R1, a second resistor R2 and a third resistor R3. The first end of the first resistor R1 is connected to the first DC end of the rectifier bridge D1, that is, the positive pole, and the second end is connected to the second resistor R2 and the third resistor R3. The second end of the second resistor R2 is grounded, that is, connected to the negative pole of the power supply. The third resistor R3 is connected between the second end of the first resistor R1 and the first end of the second resistor R2 to form a voltage divider circuit. The working principle of the mains detection circuit 312 is to detect the rectified DC voltage through the voltage divider circuit to judge the working state of the mains. When the mains is working normally, the rectified DC voltage is within the normal range, and the mains detection circuit 312 will send a corresponding signal to the communication circuit 100, indicating that the mains is normal. When the mains is abnormal or fails, the rectified DC voltage will exceed the normal range, and the mains detection circuit 312 will send a corresponding fault signal to the communication circuit 100, and the communication circuit 100 will then control the lamp to perform corresponding operations or adjustments according to the preset algorithm or logic, such as switching to the battery BT1 power supply mode to ensure that the lamp can continue to work normally. The design of the mains power detection circuit 312 is simple and effective, and can detect the working status of the mains power in real time, thereby improving the stability and reliability of the emergency light.

[0095] In addition, the control circuit of the utility model can be further optimized and improved according to actual needs. For example, more protection circuits can be added, such as overcurrent protection, overvoltage protection, etc., to improve the safety and stability of the circuit. The design of the communication circuit 100 can also be optimized to improve the communication speed and stability, so that the control circuit can respond to changes in the mains more quickly, improve the response speed and work efficiency of the emergency light, and the circuit design is simple, easy to implement and maintain.

[0096] Combined with reference Figure 8 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 5 In the embodiment shown, the buck circuit 320 includes a buck chip U1, a first inductor L1 and a second diode D3, wherein:

[0097] The first end of the buck chip U1 is connected to the power output end of the power supply circuit 310, and a first diode D2 is connected between the second end of the buck chip U1 and the ground; the first end of the first inductor L1 is connected to the second end of the buck chip U1, and at least one capacitor is connected between the first end of the first inductor L1 and the third end of the buck chip U1, the second end of the first inductor L1 is the power output end of the buck circuit 320, and at least one capacitor is connected between the second end of the first inductor L1 and the ground; the cathode of the second diode D3 is connected to the third end of the buck chip U1, and a third diode D4 is connected between the anode of the second diode D3 and the second end of the first inductor L1.

[0098] In this embodiment, the step-down circuit 320 is an important part of the emergency light control circuit, which is mainly responsible for reducing the voltage output by the power supply circuit 310 to a voltage range suitable for the operation of the lamp. This design method can effectively protect the lamp, extend its service life, and improve the stability of the entire circuit. The step-down circuit 320 is mainly composed of components such as a step-down chip U1, a first inductor L1, a second diode D3, a first diode D2, and a third diode D4. As the core component of the circuit, the step-down chip U1 is responsible for reducing the high voltage to a suitable low voltage. The first inductor L1 is used to stabilize the current to prevent the current mutation from damaging the circuit. The second diode D3, the first diode D2, and the third diode D4 are used to protect the circuit to prevent the circuit from being damaged by excessively high or low voltage.

[0099] The first end of the buck chip U1 is connected to the power output end of the power supply circuit 310 to receive the voltage output by the power supply circuit 310. A first diode D2 is connected between the second end of the buck chip U1 and the ground to form a basic buck structure. The first end of the first inductor L1 is connected to the second end of the buck chip U1 to stabilize the current. The second end of the first inductor L1 is the power output end of the buck circuit 320, which outputs the voltage after the buck process. Between the first end of the first inductor L1 and the third end of the buck chip U1, at least one or more capacitors are also connected to filter and smooth the output voltage to improve the quality of the power supply. At the same time, between the second end of the first inductor L1 and the ground, at least one or more capacitors are also connected to further improve the stability of the power supply.

[0100] The cathode of the second diode D3 is connected to the third terminal of the buck chip U1 to form a reverse voltage protection circuit. When a reverse voltage appears in the circuit, the second diode D3 will be turned on to introduce the reverse voltage to the ground, thereby protecting the circuit from damage. A third diode D4 is connected between the anode of the second diode D3 and the second terminal of the first inductor L1 to form a forward voltage protection circuit. When an excessively high forward voltage appears in the circuit, the third diode D4 will be turned on to introduce the excessively high voltage to the ground, thereby protecting the circuit from damage.

[0101] In this embodiment, the high voltage output by the power supply circuit 310 can be effectively reduced to a low voltage suitable for the operation of the lamp through the design of the step-down circuit 320, thereby protecting the lamp and extending its service life. At the same time, through the protection of the first inductor L1, the second diode D3, the first diode D2, the third diode D4 and other components, the stability and reliability of the entire circuit can be improved, ensuring that the emergency light can work normally when the mains power is abnormal or fails.

[0102] Combined with reference Fig. 9 As shown, further, another embodiment of the utility model provides a control circuit of an emergency light, based on the above Figure 5 In the embodiment shown, the charging circuit 330 includes a first switch element Q1, a second switch element Q2, a fourth diode D5 and a battery BT1, wherein:

[0103] A fourth resistor is connected between the first conduction end of the first switch element Q1 and the output end of the buck circuit 320; a fifth resistor is connected between the first conduction end of the second switch element Q2 and the control end of the first switch element Q1, the second conduction end of the second switch element Q2 is grounded, and a sixth resistor is connected between the control end of the second switch element Q2 and the charging control end of the communication circuit 100; the anode of the fourth diode D5 is connected to the second conduction end of the first switch element Q1; a second fuse is connected between the anode of the battery BT1 and the cathode of the fourth diode D5, and the cathode of the battery BT1 is grounded.

[0104] In this embodiment, the charging circuit 330 is mainly responsible for charging the battery BT1 inside the lamp, ensuring that when the mains power is abnormal or fails, the lamp can switch to the battery BT1 power supply mode and continue to work normally. This design can greatly improve the reliability and practicality of the emergency light, ensuring that it can play a role at a critical moment.

[0105] In this embodiment, the charging circuit 330 is mainly composed of a first switch element Q1, a second switch element Q2, a fourth diode D5, a battery BT1, a fourth resistor, a fifth resistor, a sixth resistor and a second fuse. The first switch element Q1 and the second switch element Q2 serve as control switches of the circuit and are responsible for controlling the on and off of the current. The fourth diode D5 is used to prevent current backflow and protect the circuit safety. The battery BT1 serves as an energy storage element to provide a backup power supply for the lamp. The fourth resistor, the fifth resistor and the sixth resistor are used to adjust the current and voltage to ensure the normal operation of the circuit. The second fuse serves as a protection device for the circuit. When the current is too large, it will automatically disconnect the circuit to prevent damage to the circuit.

[0106] In this embodiment, a fourth resistor is connected between the first conduction end of the first switch element Q1 and the output end of the buck circuit 320 to form a current limiting circuit to protect the circuit from damage by excessive current. A fifth resistor is connected between the first conduction end of the second switch element Q2 and the control end of the first switch element Q1 to control the on-off state of the first switch element Q1. The second conduction end of the second switch element Q2 is grounded to form a basic switch structure. A sixth resistor is connected between the control end of the second switch element Q2 and the charging control end of the communication circuit 100 to receive a control signal of the communication circuit 100, control the on-off state of the second switch element Q2, and thereby control the charging process of the battery BT1.

[0107] The anode of the fourth diode D5 is connected to the second conduction end of the first switch element Q1 to form a forward voltage protection circuit. When an excessively high forward voltage appears in the circuit, the fourth diode D5 will be turned on to introduce the excessive voltage into the ground, thereby protecting the circuit from damage. A second fuse is connected between the anode of the battery BT1 and the cathode of the fourth diode D5 to prevent excessive current from damaging the battery BT1. The cathode of the battery BT1 is grounded to form a basic battery BT1 power supply structure.

[0108] In this embodiment, the design of the charging circuit 330 can effectively charge the battery BT1 inside the lamp, ensuring that when the mains power is abnormal or fails, the lamp can switch to the battery BT1 power supply mode and continue to work normally. At the same time, through the protection of the first switch element Q1, the second switch element Q2, the fourth diode D5, the fourth resistor, the fifth resistor, the sixth resistor and the second fuse, the stability and reliability of the entire circuit can be improved, ensuring that the emergency light can play a role at a critical moment.

[0109] Combined with reference Fig.10 As shown, further, another embodiment of the present invention provides a control circuit for an emergency light. Figure 1-3Any of the embodiments shown further includes a discharge circuit, wherein the discharge circuit includes a third switch element Q3, wherein:

[0110] A seventh resistor R7 is directly connected between the control end of the third switch element Q3 and the driving end of the communication circuit 100 , and at least one LED lamp is connected between the second conduction end of the third switch element Q3 and the ground.

[0111] In this embodiment, the discharge circuit is mainly responsible for releasing the electric energy stored in the battery BT1 inside the lamp when the lamp is turned off or the mains power is abnormal, providing power for the LED lamp to realize the emergency lighting function. This design method can make full use of the electric energy in the battery BT1 and improve the practicality and economy of the lamp.

[0112] In this embodiment, the discharge circuit is mainly composed of the third switch element Q3, the seventh resistor R7 and the LED lamp. The third switch element Q3 is used as a control switch of the circuit to control the on and off of the current. The seventh resistor R7 is used to adjust the current to ensure the normal operation of the LED lamp. The LED lamp is used as a light-emitting element of the lamp to realize the lighting function.

[0113] In this embodiment, a seventh resistor R7 is connected between the control end of the third switch element Q3 and the driving end of the communication circuit 100, forming a basic switch control structure. When the communication circuit 100 sends a driving signal, the on-off state of the third switch element Q3 is controlled by the seventh resistor R7, thereby controlling the on and off of the LED lamp. At least one LED lamp is connected between the second conduction end of the third switch element Q3 and the ground, forming a basic lighting structure. When the third switch element Q3 is turned on, the electric energy in the battery BT1 is released through the LED lamp to realize the lighting function. By connecting multiple LED lamps in series or in parallel, the brightness and lighting range of the lamp can be adjusted according to actual needs.

[0114] In this embodiment, through the design of the discharge circuit, when the lamp is turned off or the mains power is abnormal, the electric energy stored in the battery BT1 can be released to provide power for the LED lamp to realize the function of emergency lighting. This design method can make full use of the electric energy in the battery BT1 and improve the practicality and economy of the lamp. At the same time, through the coordinated use of the third switch element Q3, the seventh resistor R7 and the LED lamp and other components, the stability and reliability of the entire circuit can also be improved, ensuring that the emergency light can play a role at a critical moment.

[0115] The utility model also proposes an emergency light, which includes a control circuit of the emergency light. The specific structure of the control circuit of the emergency light refers to the above embodiment. Since the emergency light adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0116] The above is an implementation method provided in combination with specific content, and it is not considered that the specific implementation of this application is limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or a number of technical deductions or replacements made based on the concept of this application, should be considered as the protection scope of this application.

Claims

1. A control circuit for an emergency light, characterized in that: include: A communication circuit, the communication circuit is used to obtain a status signal of the lamp and output a corresponding emergency data signal; The first terminal is electrically connected to the communication circuit, and the first terminal is used for connecting the communication circuit to an external data reader and outputting an emergency data signal to the external data reader.

2. The control circuit of the emergency light according to claim 1, characterized in that: The communication circuit comprises: A main control chip, a communication end of the main control chip is connected to the communication end of the first terminal, and the main control chip is used to output a corresponding emergency data signal; A regulating circuit, wherein the output end of the regulating circuit is connected to the first signal end of the main control chip, and the regulating circuit is used to transmit a regulating signal to the main control chip so that the main control chip adjusts the output emergency data signal.

3. The control circuit of the emergency light according to claim 2, characterized in that: The regulating circuit comprises: A touch switch, both ends of which are connected to the adjustment signal end of the main control chip, and the touch switch is used to input the adjustment signal.

4. The control circuit of the emergency light according to any one of claims 1 to 3, characterized in that: Also included is a power supply circuit, the power supply circuit comprising: A power supply circuit, the power supply circuit is used to access the mains power and rectify the mains power into a direct current source; A step-down circuit, wherein a power input terminal of the step-down circuit is connected to a power output terminal of the power supply circuit, and the step-down circuit is used to reduce the voltage of the rectified mains power; A charging circuit, wherein the power input end of the charging circuit is connected to the power output end of the step-down circuit, the power output end of the charging circuit is connected to the power input end of the communication circuit, and the charging circuit is used to charge the battery.

5. The control circuit of the emergency light according to claim 4, characterized in that: The power supply circuit comprises: A rectifier circuit, the rectifier circuit is used to access the mains power and rectify the mains power into a direct current source; A mains power detection circuit, wherein the power input end of the mains power detection circuit is connected to the DC output end of the rectifier circuit, and the signal output end of the mains power detection circuit is connected to the signal input end of the communication circuit.

6. The control circuit of the emergency light according to claim 5, characterized in that: The rectifier circuit comprises: a first fuse, wherein a first end of the first fuse is connected to the live wire; A rectifier bridge, wherein a first AC end of the rectifier bridge is connected to the second end of the first fuse, a second AC end of the rectifier bridge is connected to a neutral line, a first DC end of the rectifier bridge is connected to a first input end of the mains detection circuit, a second DC end of the rectifier bridge is connected to a second input end of the mains detection circuit, and at least one capacitor is connected between the first DC end and the second DC end of the rectifier bridge; The mains power detection circuit comprises a first resistor and a second resistor; The first end of the first resistor is connected to the first DC end of the rectifier bridge, the second end of the second resistor is grounded, a third resistor is connected between the second end of the first resistor and the first end of the second resistor, and a common node of the second resistor and the third resistor is connected to the signal input end of the communication circuit.

7. The control circuit of the emergency light according to claim 4, characterized in that: The step-down circuit comprises: A step-down chip, wherein a first end of the step-down chip is connected to a power output end of the power supply circuit, and a first diode is connected between a second end of the step-down chip and the ground; a first inductor, wherein a first end of the first inductor is connected to a second end of the buck chip, at least one capacitor is connected between the first end of the first inductor and a third end of the buck chip, a second end of the first inductor is a power output end of the buck circuit, and at least one capacitor is connected between the second end of the first inductor and ground; A second diode, wherein a cathode of the second diode is connected to a third end of the buck chip, and a third diode is connected between an anode of the second diode and a second end of the first inductor.

8. The control circuit of the emergency light according to claim 4, characterized in that: The charging circuit comprises: a first switch element, wherein a fourth resistor is connected between a first conduction end of the first switch element and an output end of the step-down circuit; a second switch element, a fifth resistor connected between a first conduction end of the second switch element and a control end of the first switch element, a second conduction end of the second switch element is grounded, and a sixth resistor is connected between the control end of the second switch element and a charging control end of the communication circuit; a fourth diode, wherein an anode of the fourth diode is connected to the second conducting end of the first switching element; A battery, a second fuse is connected between the positive electrode of the battery and the negative electrode of the fourth diode, and the negative electrode of the battery is grounded.

9. The control circuit of the emergency light according to any one of claims 1 to 3, characterized in that: Also included is a discharge circuit, the discharge circuit comprising: A third switch element, a seventh resistor is directly connected between the control end of the third switch element and the driving end of the communication circuit, and at least one LED lamp is connected between the second conduction end of the third switch element and the ground.

10. An emergency light, characterized in that: The invention comprises a control circuit of an emergency light as claimed in any one of claims 1 to 9.

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